Life And Health a Text book On Physiology for High Schools Academies And Norma
Life And Health a Text book On Physiology for High Schools Academies And Norma
Albert F Albert Franklin Blaisdell
The book Life And Health a Text book On Physiology for High Schools Academies And Norma was written by author Albert F Albert Franklin Blaisdell Here you can read free online of Life And Health a Text book On Physiology for High Schools Academies And Norma book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Life And Health a Text book On Physiology for High Schools Academies And Norma a good or bad book?
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) through the agency of bacteria. In yellow fever, diphtheria, typhoid fever, and consumption the causal relation of a particular kind of bac- teria to each disease has been definitely established. The Preservation of Health 289 449. Disease-Producing Bacteria in the Soil. Surface soils, especially those rich in organic matter, abound in many kinds of bacteria. There seems to be an intimate relation between the soil and important bacterial diseases. The terrible disease called tetanus, or " loc...kjaw, " is known to be due to a micro-organism common in the soil of certain localities. Typhoid bacilli were kept alive for 456 days by one experimenter in soil which had been polluted with organic matter. Farm soils have been contaminated with the bacilli of anthrax, or malignant pustule (Fig. 157), and have retained the infectious virus for several months. In brief, the disease-producing bacteria found in the surface soils can and do retain their vitality, and some- times even their virulence, for long periods of time.
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